S175 - CRYPTOGRAPHY AND NETWORK SECURITY

Course Educational Objectives:

The main goal of this course is to provide you with a background, foundation, and insight into the many dimensions of information security. This knowledge will serve as basis for further deeper study into selected areas of the field, or as an important component in your further studies and involvement in computing as a whole.

The primary objectives of the course are to help you:

1. Understand information security’s importance in our increasingly computer-driven world.

2. Master the key concepts of information security and how they “work.”

3. Develop a “security mindset:” learn how to critically analyze situations of computer and network usage from a security perspective, identifying the salient issues, viewpoints, and trade-offs.

4. Clearly and coherently communicate (both verbally and in writing) about complex technical topics.

Course Outcomes: After completion of the course students are able to:

1. Define the concepts and definition of the information security

2. Differentiate between several types of Security attacks, Services and Mechanisms

3. Identify the threats to information security

4. Show how to protect information recourses

5. Show how to maintaining and protecting information system

UNIT - I INTRODUCTION: Security Attacks (Interruption, Interception, Modification and Fabrication), Security Services (Confidentiality, Authentication, Integrity, Non-repudiation, access Control and Availability) and Mechanisms, A model for Internetwork security, Internet Standards and RFCs. Symmetric Encryption and Message Authentication: Conventional Encryption Principles, Conventional encryption algorithms(DES, Triple DES), cipher block modes of operation(CBC,CFB), location of encryption devices, key distribution. Message Authentication: Approaches to Message Authentication, Secure Hash Functions and HMAC.

Slides: https://drive.google.com/open?id=19P4vYFqN36VV3w-UPPbwHQb76WheMlcG

Questions: https://drive.google.com/open?id=1MWl9OpG5rUaAlJbyiaEYXtXKa1X4p9ky

UNIT - II Public Key Cryptography: Public key cryptography principles, public key cryptography algorithms, digital signatures, digital Certificates, Certificate Authority and key management Authentication Applications: Kerberos, X.509 Directory Authentication Service.

Slides: https://drive.google.com/file/d/1BykvyRHzlr4ivfXBPfeUgCLn9RlcSzHQ/view?usp=sharing

Questions: https://drive.google.com/open?id=16-iexQLS4TYLcY4JRa1xhbDJH3h5nizR

UNIT - III Email privacy: Pretty Good Privacy (PGP) and S/MIME. IP Security: IP Security Overview, IP Security Architecture, Authentication Header, Encapsulating Security Payload, Combining Security Associations.

Slides:https://drive.google.com/file/d/1R2BI5cpynA_sX6jP_57T8QnIRrc8XLq0/view?usp=sharing

Questions: https://drive.google.com/open?id=16e2hLBXOOSksU47tagB8ihrRZ8FQW8be

UNIT - IV Web Security: Web Security Requirements, Secure Socket Layer (SSL) and Transport Layer Security (TLS), Secure Electronic Transaction (SET).
Slides:https://drive.google.com/open?id=1hH_XmGtw4z1DQS0h6v5BUlgjYfYPeH21
Questions:https://drive.google.com/open?id=1IzV8MzP1ELH0ap1YxTtE5GhXG7QGZCIn

UNIT V : Intruders: Intruders Malicious Software: Viruses and related threats. Firewalls: Firewall Design principles, Trusted Systems
Slides:
Material: https://drive.google.com/openid=0BzCAANPvUvmtTzRUV3hWaUJiMFozUVFzNi1fOWRBSlo0UG9J
Slides: https://drive.google.com/open?id=1hWwFIaFlCPGJSlrv6oYk4w4QlVl9lrH6
Questions: https://drive.google.com/open?id=1zIfhN3zuhPd60Dq_xGBsrpbi2Hu-yaGv

TEXT BOOKS:

1. William Stallings, “Network Security Essentials (Applications and Standards)”, Pearson Education.

2. William Stallings, ” Cryptography and network Security”, PHI/Pearson, Third edition

REFERENCES:

1. Whitman, “Principles of Information Security”, Thomson.

2. Robert Bragg, Mark Rhodes, “Network Security: The complete reference”, TMH

3. Bachmann, “Introduction to Cryptography”, Springer publications. https://www.lbrce.ac.in/autonomous/R%2014%20UG%20Syllabus/IT.pdf

Lab:

RC4 Algorithm: https://drive.google.com/file/d/1hEvBBdnaYHbqKPLXiYUv2HxlV3NTmRNK/view?usp=sharing